Tootfinder

⭐ Researchers uncover surprising limit on human imagination
#brain

Researchers uncover surprising limit on human imagination
Human beings can juggle up to 10 balls at once. But how many can they move through the air with their imaginations?

A look at Defense Secretary Hegseth's efforts to limit Pentagon press access; sources: he tried to bar an NBC News reporter who had dug up info about his past (Erik Wemple/New York Times)
https://www.nytimes.com/2025/10/10/business/media/hegseth-penta…

Inside Hegseth’s Effort to Limit Press Access at the Pentagon
Defense Secretary Pete Hegseth is at odds with the news media to a degree unseen in modern times, former Pentagon officials say.

If social media posts would have a word limit instead of a character limit, we Germans would have a huge advantage constructing (and using) absurdly long compound words. #justthinkin

Microlocal analysis of the non-relativistic limit of the Klein--Gordon equation: Estimates
Andrew Hassell, Qiuye Jia, Ethan Sussman, Andras Vasy
https://arxiv.org/abs/2509.09518

Microlocal analysis of the non-relativistic limit of the Klein--Gordon equation: Estimates
This is the more technical half of a two-part work in which we introduce a robust microlocal framework for analyzing the non-relativistic limit of relativistic wave equations with time-dependent coefficients, focusing on the Klein--Gordon equation. Two asymptotic regimes in phase space are relevant to the non-relativistic limit: one corresponding to what physicists call ``natural'' units, in which the PDE is approximable by the free Klein--Gordon equation, and a low-frequency regime in which th…

Limit theorems for stochastic Volterra processes
Luigi Amedeo Bianchi, Stefano Bonaccorsi, Ole Ca\~nadas, Martin Friesen
https://arxiv.org/abs/2509.08466 https://

Limit theorems for stochastic Volterra processes
We introduce an abstract Hilbert space-valued framework of Markovian lifts for stochastic Volterra equations with operator-valued Volterra kernels. Our main results address the existence and characterisation of possibly multiple limit distributions and stationary processes, a law of large numbers including a convergence rate, and the central limit theorem for time averages of the process within the Gaussian domain of attraction. As particular examples, we study Markovian lifts based on Laplace …

Constraint correlation functions of the Ising model in the scaling limit
Ivan Balog, Adam Ran\c{c}on
https://arxiv.org/abs/2509.08557 https://arxiv.org/pdf…

Constraint correlation functions of the Ising model in the scaling limit
We study the correlation function of the one-dimensional Ising model at fixed magnetization. Focusing on the scaling limit close to the zero-temperature fixed point, we show that this correlation function, in momentum space, exhibits surprising oscillations as a function of the magnetization. We show that these oscillations have a period inversely proportional to the momentum and give an interpretation in terms of domain walls. This is in sharp contrast with the behavior of the correlation func…

Slip over liquid-infused gratings in the singular limit of a nearly inviscid lubricant
Gunnar G. Peng, Ehud Yariv, Ory Schnitzer
https://arxiv.org/abs/2508.07449 https://…

Slip over liquid-infused gratings in the singular limit of a nearly inviscid lubricant
We consider shear-driven longitudinal flow of an exterior fluid over a periodic array of rectangular grooves filled with an immiscible interior fluid (the "lubricant"), the grooves being formed by infinitely thin ridges protruding from a flat substrate. The ratio $λ$ of the effective slip length to the semi-period is a function of the ratio $μ$ of the interior to exterior viscosities and the ratio $h$ of the grooves depth to the semi-period. We focus on the limit $μ\ll1$, which is singular f…

Droht der digitale Blackout? - KI und Internet am Limit
Das Digitalzeitalter hat längst das öffentliche und private Leben erreicht, eine Welt ohne E-Mail, TikTok, Web und KI scheint unvorstellbar. Doch die Technik hängt am seidenen Faden: Was, wenn der Strom für Rechenzentren knapp wird, Unterseekabel sabotiert und Grafikchips sanktioniert werden? In Forschung, Industrie und Militär sucht man nach Lösungen gegen den digitalen Blackout.
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Superresolution for two incoherent optical sources with arbitrary intensities in two dimensions
Junyan Li, Shengshi Pang
https://arxiv.org/abs/2508.08049 https://

Superresolution for two incoherent optical sources with arbitrary intensities in two dimensions
The Rayleigh criterion has long served as a fundamental limit for the resolution of classical optical imaging. However, recent advances in quantum metrology have led to the quantum superresolution technique that can break Rayleigh's curse and estimate the separation between a pair of incoherent point sources with nonvanishing precision. For two-dimensional optical systems, the precision limit of estimating the whole separation, i.e., the distance, between two point sources remains unknown so fa…

Eine neue Studie im Auftrag von #verdi und der #KlimaAllianz fordert einen Neustart für die Finanzierung des #ÖPNV.
Das aktuelle System sei zu zersplittert und behindere Ausbau und Planungssi…

ÖPNV am Limit: Studie fordert Neustart für Finanzierung
Eine heute veröffentlichte Studie im Auftrag von ver.di und der Klima-Allianz Deutschland legt erstmals einen umfassenden Vorschlag für eine nachhaltige Neustrukturierung der ÖPNV-Finanzierung vor

Timekeeping precision enhancements at constant power
K. J. H. Peters, B. Braeckeveldt, B. Maes, S. R. K. Rodriguez
https://arxiv.org/abs/2509.08582 https://

Timekeeping precision enhancements at constant power
We demonstrate precision enhancements in a timekeeping device at constant power and regardless of the operation frequency. Our timekeeping device is a laser-driven coupled-cavity system sustaining limit cycles. We quantify the precision of this device via the standard deviation of the limit cycle period, and demonstrate how it changes when varying the cavity length at constant laser power. Through a phase space analysis of the limit cycle fluctuations, we reveal how the proximity of different b…

@… and I took the kWh limit / month from the terms & conditions. But probably all will shift accordingly if you sign up for more / less miles. Still, it requires a fairly even distribution over the months in a year.

Large scale dynamical response of interacting $1d$ Fermi systems
Marcello Porta, Giuseppe Scola, Harman Preet Singh
https://arxiv.org/abs/2509.08665 https://

Large scale dynamical response of interacting $1d$ Fermi systems
We consider the dynamics of a class of weakly interacting, gapless $1d$ fermionic systems, in presence of small external perturbations slowly varying in space and in time. We consider the evolution of the expectation values of the charge density and of the current density, in the thermodynamic limit and for low enough temperatures. We prove the validity and the asymptotic exactness of linear response in the limit of vanishing space-time variation of the perturbation, and we provide the explicit…

Heat Battery Top-up Dataset - Top-up limit from grid (and diversion of PV) to heat-battery. #heatBattery #microgen #dataset -

Heat Battery Top-up Dataset
Top-up limit from grid (and diversion of PV) to heat-battery. #heatBattery #microgen #dataset

The office yesterday.
And let me say that trying to keep an 85dB limit and being forced to suddenly go direct made for an extremely challenging situation. It highlighted for me that if you're going to go direct you really have to set a rig up with that goal in mind, and then go out and do it a whole bunch of times to optimize it.
coughmodelerscough
Side note: our drummer had to play a low-end electronic kit, and he just crushed it.
I said that kit will need a ciga…

Limit varieties of aperiodic monoids
Sergey V. Gusev, Olga B. Sapir
https://arxiv.org/abs/2510.06854 https://arxiv.org/pdf/2510.06854

Limit varieties of aperiodic monoids
A limit variety is a variety that is minimal with respect to being non-finitely based. We present a new limit variety of aperiodic monoid. We also show that if there exists any other limit variety of aperiodic monoids, then it is contained in the joint of the variety $\mathbb B^1$ of all idempotent monoids and certain finitely generated variety $\mathbb E^1$ with $\mathbb B^1 \wedge \mathbb E^1 = \mathbb L_2^1$, where $\mathbb L_2^1$ is the variety of left-zero monoids. Jackson and Lee proved t…

Delving into the depths of NGC 3783 with XRISM II. Cross-calibration of X-ray instruments used in the large, multi-mission observational campaign
XRISM collaboration
https://arxiv.org/abs/2509.08649

Delving into the depths of NGC 3783 with XRISM II. Cross-calibration of X-ray instruments used in the large, multi-mission observational campaign
Accurate X-ray spectroscopic measurements are fundamental for deriving basic physical parameters of the most abundant baryon components in the Universe. The plethora of X-ray observatories currently operational enables a panchromatic view of the high-energy emission of celestial sources. However, uncertainties in the energy-dependent calibration of the instrument transfer functions (e.g. the effective area, energy redistribution, or gain) can limit - and historically, did limit - the accuracy o…

Short-Range Order and Li$_x$TM$_{4-x}$ Probability Maps for Disordered Rocksalt Cathodes
Tzu-chen Liu, Steven B. Torrisi, Chris Wolverton
https://arxiv.org/abs/2508.08112 https:…

Short-Range Order and Li$_x$TM$_{4-x}$ Probability Maps for Disordered Rocksalt Cathodes
Short-range order (SRO) in the cation-disordered state is a controlling factor influencing the probability of finding Li$_{4}$ tetrahedron clusters in disordered rocksalt (DRX) cathode materials. However, the prevalent Li$_4$ probability below the random limit across reported DRX compositions has not been systematically investigated, active strategies to surpass the random limit of Li$_4$ probability are lacking, and the fundamental ordering behavior on the face-centered cubic (FCC) lattice rem…

Browns' Garrett cited for driving 40 mph over limit https://www.espn.com/nfl/story/_/id/45949332/browns-myles-garrett-cited-speeding-clocked-going-100-mph-60-mph-zone

Entropy and multiplicity of hadrons in the high energy limit within dipole cascade models
Krzysztof Kutak, S\'andor L\"ok\"os
https://arxiv.org/abs/2509.07898 http…

Entropy and multiplicity of hadrons in the high energy limit within dipole cascade models
We investigate and compare QCD dipole cascade models, the 1D Mueller dipole model, its high energy limit and its generalization that follows from studies of 1D systems with conformal symmetry. To address the ambiguity stemming from different definitions of the rapidity ranges in experimental measurements, we propose the entropy as the function of the logarithm of the average multiplicity, $S(\ln\langle n \rangle)$, as a universal observable. From the solutions of the models, we calculate both t…

SecuLEx: a Secure Limit Exchange Market for Dynamic Operating Envelopes
Maurizio Vassallo, Adrien Bolland, Alireza Bahmanyar, Louis Wehenkel, Laurine Duchesne, Dong Liu, Sania Khaskheli, Alexis Ha Thuc, Pedro P. Vergara, Amjad Anvari-Moghaddam, Simon Gerard, Damien Ernst
https://arxiv.org/abs/2510.08172

SecuLEx: a Secure Limit Exchange Market for Dynamic Operating Envelopes
Distributed energy resources (DERs) are transforming power networks, challenging traditional operational methods, and requiring new coordination mechanisms. To address this challenge, this paper introduces SecuLEx (Secure Limit Exchange), a new market-based paradigm to allocate power injection and withdrawal limits that guarantee network security during time periods, called dynamic operating envelopes (DOEs). Under this paradigm, distribution system operators (DSOs) assign initial DOEs to custo…

A Deterministic Limit Order Book Simulator with Hawkes-Driven Order Flow
Sohaib El Karmi
https://arxiv.org/abs/2510.08085 https://arxiv.org/pdf/2510.08085

A Deterministic Limit Order Book Simulator with Hawkes-Driven Order Flow
We present a reproducible research framework for market microstructure combining a deterministic C++ limit order book (LOB) simulator with stochastic order flow generated by multivariate marked Hawkes processes. The paper derives full stability and ergodicity proofs for both linear and nonlinear Hawkes models, implements time-rescaling and goodness-of-fit diagnostics, and calibrates exponential and power-law kernels on Binance BTCUSDT and LOBSTER AAPL datasets. Empirical results highlight the n…

An upper bound of the silhouette validation metric for clustering
Hugo Str\"ang, Tai Dinh
https://arxiv.org/abs/2509.08625 https://arxiv.org/pdf/2509.…

An upper bound of the silhouette validation metric for clustering
The silhouette coefficient summarizes, per observation, cohesion versus separation in [-1, 1]; the average silhouette width (ASW) is a common internal measure of clustering quality where higher values indicate more coveted results. However, the dataset-specific maximum of ASW is typically unknown, and the standard upper limit 1 is often unattainable. In this work, we derive for each data point in a given dataset a sharp upper bound on its silhouette width. By aggregating these individual bounds…

Duality between dissipation-coherence trade-off and thermodynamic speed limit based on thermodynamic uncertainty relation for stochastic limit cycles in the weak-noise limit
Ryuna Nagayama, Sosuke Ito
https://arxiv.org/abs/2509.06421

Duality between dissipation-coherence trade-off and thermodynamic speed limit based on thermodynamic uncertainty relation for stochastic limit cycles in the weak-noise limit
We derive two fundamental trade-offs for general stochastic limit cycles in the weak-noise limit. The first is the dissipation-coherence trade-off, which was numerically conjectured and partially proved by Santolin and Falasco [Phys. Rev. Lett. 135, 057101 (2025)]. This trade-off bounds the entropy production required for one oscillatory period using the number of oscillations that occur before steady-state correlations are disrupted. The second is the thermodynamic speed limit, which bounds th…

Error estimates in the non-relativistic limit for the two-dimensional cubic Klein-Gordon equation
Yong Lu, Fangzheng Huang
https://arxiv.org/abs/2509.08271 https://

Error estimates in the non-relativistic limit for the two-dimensional cubic Klein-Gordon equation
In this paper, we study the non-relativistic limit of the two-dimensional cubic nonlinear Klein-Gordon equation with a small parameter $0<\varepsilon \ll 1$ which is inversely proportional to the speed of light. We show the cubic nonlinear Klein-Gordon equation converges to the cubic nonlinear Schrödinger equation with a convergence rate of order $O(\varepsilon^2)$. In particular, for the defocusing case with high regularity initial data, we show error estimates of the form $C(1+t)^N \varepsil…

Replaced article(s) found for cs.CL. https://arxiv.org/list/cs.CL/new
[4/4]:
- No Thoughts Just AI: Biased LLM Hiring Recommendations Alter Human Decision Making and Limit Huma...
Kyra Wilson, Mattea Sim, Anna-Maria Gueorguieva, Aylin Caliskan

Using dense graph limit theory to count cocycles of random simplicial complexes
Andr\'as M\'esz\'aros
https://arxiv.org/abs/2509.06559 https://…

Using dense graph limit theory to count cocycles of random simplicial complexes
We develop a limit theory for $1$-cochains of complete graphs with coefficients from a finite abelian group. We prove an analogue of the large deviation principle of Chatterjee and Varadhan for random cochains. We use these new tools to prove results about the homology of random $2$-dimensional simplicial complexes. More specifically, we prove that if $T_n$ is a random $2$-dimensional determinantal hypertree on $n$ vertices and $p$ is any prime, then \[\frac{\dim H_1(T_n,\mathbb{F}_p)}{n^2}\]…

Dexplore: Scalable Neural Control for Dexterous Manipulation from Reference-Scoped Exploration
Sirui Xu, Yu-Wei Chao, Liuyu Bian, Arsalan Mousavian, Yu-Xiong Wang, Liang-Yan Gui, Wei Yang
https://arxiv.org/abs/2509.09671

Dexplore: Scalable Neural Control for Dexterous Manipulation from Reference-Scoped Exploration
Hand-object motion-capture (MoCap) repositories offer large-scale, contact-rich demonstrations and hold promise for scaling dexterous robotic manipulation. Yet demonstration inaccuracies and embodiment gaps between human and robot hands limit the straightforward use of these data. Existing methods adopt a three-stage workflow, including retargeting, tracking, and residual correction, which often leaves demonstrations underused and compound errors across stages. We introduce Dexplore, a unified …

The spectrum of limit models in a first order setting
Jeremy Beard
https://arxiv.org/abs/2510.03459 https://arxiv.org/pdf/2510.03459

The spectrum of limit models in a first order setting
Originally introduced by Kolmann and Shelah as a surrogate for saturated models, limit models have been established as natural and useful objects when studying abstract elementary classes. Shelah began the study of when (multiple notions of) limit models exist for first order theories. In this paper we look at their structure. In superstable theories it is known that all limit models are isomorphic, but in the strictly stable case the number of non-isomorphic models was not well understood. H…

The gyromagnetic factor of charged rotating black holes in various dimensions from scattering amplitudes
Claudio Gambino, Fabio Riccioni, Victor Sanz Sanchis
https://arxiv.org/abs/2509.08456

The gyromagnetic factor of charged rotating black holes in various dimensions from scattering amplitudes
Classical black hole spacetimes can be recovered from the classical limit of quantum scattering amplitudes in a low-energy effective field theory of gravity. In this work we compute, at first post-Minkowskian and dipole order, the metric and the electromagnetic potential for charged and rotating black holes in general spacetime dimensions from amplitudes describing the emission of either a graviton or a photon from a massive and charged Dirac fermion field up to one loop. In addition, we introd…

Stabilisability and beta representations
Carl P. Dettmann (University of Bristol, UK)
https://arxiv.org/abs/2509.08532 https://arxiv.org/pdf/2509.08532

Stabilisability and beta representations
We consider a one dimensional affine switched system obtained from a formal limit of a two dimensional linear system. We show this is equivalent to minimising the average digit in beta representations with unrestricted digits. We give a countable set of $β$ for which the result is given by the usual (greedy) beta expansion, an interval of values for which it is strictly less, and a conditional lower bound for all $β$.

Algorithmic Tradeoffs, Applied NLP, and the State-of-the-Art Fallacy
AJ Alvero, Ruohong Dong, Klint Kanopka, David Lang
https://arxiv.org/abs/2509.08199 https://

Algorithmic Tradeoffs, Applied NLP, and the State-of-the-Art Fallacy
Computational sociology is growing in popularity, yet the analytic tools employed differ widely in power, transparency, and interpretability. In computer science, methods gain popularity after surpassing benchmarks of predictive accuracy, becoming the "state of the art." Computer scientists favor novelty and innovation for different reasons, but prioritizing technical prestige over methodological fit could unintentionally limit the scope of sociological inquiry. To illustrate, we focus on compu…

Mass-to-Horizon Relation and Entropy Beyond the Bekenstein-Hawking Limit
Hussain Gohar
https://arxiv.org/abs/2510.07587 https://arxiv.org/pdf/2510.07587

Mass-to-Horizon Relation and Entropy Beyond the Bekenstein-Hawking Limit
We introduce a generalized mass-horizon relation applicable to cosmological horizons. This formulation provides a unified framework for deriving a broad class of Bekenstein entropy extensions motivated by statistical mechanics, quantum gravity, and phenomenological considerations, through the application of the Clausius relation together with the Hawking temperature. We further introduce this notion as a foundational framework for constructing generalized entropy forms that remain consistent wi…

Deep Learning-Based Desikan-Killiany Parcellation of the Brain Using Diffusion MRI
Yousef Sadegheih, Dorit Merhof
https://arxiv.org/abs/2508.07815 https://…

Deep Learning-Based Desikan-Killiany Parcellation of the Brain Using Diffusion MRI
Accurate brain parcellation in diffusion MRI (dMRI) space is essential for advanced neuroimaging analyses. However, most existing approaches rely on anatomical MRI for segmentation and inter-modality registration, a process that can introduce errors and limit the versatility of the technique. In this study, we present a novel deep learning-based framework for direct parcellation based on the Desikan-Killiany (DK) atlas using only diffusion MRI data. Our method utilizes a hierarchical, two-stage…

Beyond endoscopy for $\mathsf{GL}_2$ over $\mathbb{Q}$ with ramification 3: contribution of the elliptic part
Yuhao Cheng
https://arxiv.org/abs/2508.07167 https://

Beyond endoscopy for $\mathsf{GL}_2$ over $\mathbb{Q}$ with ramification 3: contribution of the elliptic part
We continue to work on \emph{Beyond Endoscopy} for $\mathsf{GL}_2$ over $\mathbb{Q}$ with ramification at $S = \{\infty, q_1, \dots, q_r\}$ (where $2 \in S$), generalizing the final step of Altuğ's work in the unramified setting. We derive an explicit asymptotic formula for the elliptic part when summing over $n

The Shannon Upper Bound for the Error Exponent
Sergey Tridenski, Anelia Somekh-Baruch
https://arxiv.org/abs/2509.08425 https://arxiv.org/pdf/2509.08425

The Shannon Upper Bound for the Error Exponent
For the discrete-time additive white generalized Gaussian noise channel with a generalized input power constraint, with the respective shape and power parameters >= 1, we derive an upper bound on the optimal block error exponent. Explicit asymptotic upper bounds in the limit of a large block length n are given for three special cases: the Laplace noise channel and the Gaussian noise channel with the average absolute value constraint, and for the Laplace noise channel with the second power const…

FTC opens inquiry into how AI chatbots impact child safety, privacy https://therecord.media/ftc-opens-inquiry-ai-chatbots-kids

Nvidia is aggressively opposing Republican-led proposals to limit AI chip sales to China, labeling supporters as "AI doomers", an unconventional lobbying blitz (New York Times)
https://www.nytimes.com/2025/09/09/technology/nvidia-china-chip-s…

Nvidia Accuses Rivals of Being A.I. Doomers as US Debates Sale of Chips to China
Rankling national security experts, the chipmaker has stepped up attacks on lawmakers who are pushing restrictions.

LALM-Eval: An Open-Source Toolkit for Holistic Evaluation of Large Audio Language Models
Sidharth Surapaneni, Hoang Nguyen, Jash Mehta, Aman Tiwari, Oluwanifemi Bamgbose, Akshay Kalkunte, Sai Rajeswar, Sathwik Tejaswi Madhusudhan
https://arxiv.org/abs/2509.08031

LALM-Eval: An Open-Source Toolkit for Holistic Evaluation of Large Audio Language Models
Large Audio Language Models (LALMs) are rapidly advancing, but evaluating them remains challenging due to inefficient toolkits that limit fair comparison and systematic assessment. Current frameworks suffer from three critical issues: slow processing that bottlenecks large-scale studies, inconsistent prompting that hurts reproducibility, and narrow task coverage that misses important audio reasoning capabilities. We introduce LALM-Eval, an efficient and comprehensive evaluation framework for LA…

"In 2024, the climate crisis worsened in all ways. But we can still limit warming with bold action"
#Climate #ClimateChange

In 2024, the climate crisis worsened in all ways. But we can still limit warming with bold action
We are living in a hotter, more chaotic world, with more emissions, fires and fossil fuel consumption.

On Sesquilinear Forms for Lower Semibounded (Singular) Sturm-Liouville Operators
Jussi Behrndt, Fritz Gesztesy, Seppo Hassi, Roger Nichols, Henk de Snoo
https://arxiv.org/abs/2509.07205

On Sesquilinear Forms for Lower Semibounded (Singular) Sturm-Liouville Operators
Any self-adjoint extension of a (singular) Sturm-Liouville operator bounded from below uniquely leads to an associated sesquilinear form. This form is characterized in terms of principal and nonprincipal solutions of the Sturm-Liouville operator by using generalized boundary values. We provide these forms in detail in all possible cases (explicitly, when both endpoints are limit circle, when one endpoint is limit circle, and when both endpoints are limit point).

Crosslisted article(s) found for eess.SP. https://arxiv.org/list/eess.SP/new
[1/1]:
- RAPID Quantum Detection and Demodulation of Covert Communications: Breaking the Noise Limit with ...
Amirhossein Taherpour, Abbas Taherpour, Tamer Khattab

Mitigating incoherent excess variance in high-redshift 21-cm observations with multi-output cross Gaussian process regression
S. Munshi, L. V. E. Koopmans, F. G. Mertens, A. R. Offringa, S. A. Brackenhoff, E. Ceccotti, J. K. Chege, L. Y. Gao, S. Ghosh, M. Mevius, S. Zaroubi
https://arxiv.org/abs/2508.08235

Mitigating incoherent excess variance in high-redshift 21-cm observations with multi-output cross Gaussian process regression
Systematic effects that limit the achievable sensitivity of current low-frequency radio telescopes to the 21-cm signal are among the foremost challenges in observational 21-cm cosmology. The standard approach to retrieving the 21-cm signal from radio interferometric data separates it from bright astrophysical foregrounds by exploiting their spectrally smooth nature, in contrast to the finer spectral structure of the 21-cm signal. Contaminants exhibiting rapid frequency fluctuations, on the othe…

Limit Cycles in Piecewise Quadratic Kolmogorov Systems
Leonardo Da Cruz, Regilene Oliveira, Joan Torregrosa
https://arxiv.org/abs/2509.06198 https://arxiv.…

Limit Cycles in Piecewise Quadratic Kolmogorov Systems
We study planar piecewise quadratic differential systems of Kolmogorov type. Specifically, we consider systems with both coordinate axes invariant and with a separation line that is straight and distinct from the invariant axes. The main results concern two different aspects. First, the center problem is solved for certain subclasses. Second, using this classification, the bifurcation of limit cycles of crossing type is investigated. We contrast the nature of Hopf-type bifurcations in smooth an…

Beyond No Tension: JWST z > 10 Galaxies Push Simulations to the Limit
Joe McCaffrey, Samantha Hardin, John H. Wise, John A. Regan
https://arxiv.org/abs/2509.07695 https://

Beyond No Tension: JWST z > 10 Galaxies Push Simulations to the Limit
JWST has identified some of the Universe's earliest galaxies, repeatedly pushing the frontier to ever higher redshifts and stellar masses. The presence of such extreme galaxies at such early times, with large stellar populations and high star-formation rates, naturally results in a tension between observation and theory. This tension between numerical models and observations can be either due to our underlying cosmological models or due to a gap in our understanding of early Universe astrophysi…

Understanding Human Limits in Pattern Recognition: A Computational Model of Sequential Reasoning in Rock, Paper, Scissors
Logan Cross, Erik Brockbank, Tobias Gerstenberg, Judith E. Fan, Daniel L. K. Yamins, Nick Haber
https://arxiv.org/abs/2508.06503

Understanding Human Limits in Pattern Recognition: A Computational Model of Sequential Reasoning in Rock, Paper, Scissors
How do we predict others from patterns in their behavior and what are the computational constraints that limit this ability? We investigate these questions by modeling human behavior over repeated games of rock, paper, scissors from Brockbank & Vul (2024). Against algorithmic opponents that varied in strategic sophistication, people readily exploit simple transition patterns (e.g., consistently playing rock after paper) but struggle to detect more complex sequential dependencies. To understand …

Stable central limit theorems for discrete-time lag martingale difference arrays
Easton Huch, Walter Dempsey
https://arxiv.org/abs/2510.06524 https://arxiv…

Stable central limit theorems for discrete-time lag martingale difference arrays
Recent work in dynamic causal inference introduced a class of discrete-time stochastic processes that generalize martingale difference sequences and arrays as follows: the random variates in each sequence have expectation zero given certain lagged filtrations but not given the natural filtration. We formalize this class of stochastic processes and prove a stable central limit theorem (CLT) via a Bernstein blocking scheme and an application of the classical martingale CLT. We generalize our limi…

Edwards-Wilkinson limit for a stochastic advection-diffusion PDE
Sotirios Kotitsas, Dejun Luo, Mario Maurelli
https://arxiv.org/abs/2509.07956 https://arxi…

Edwards-Wilkinson limit for a stochastic advection-diffusion PDE
We consider a diffusion in a Gaussian random environment that is white in time and study the large-scale behavior of the quenched density with respect to the Lebesgue measure. We show that under diffusive rescaling, the fluctuations of the density converge to a Gaussian limit, described by an additive stochastic heat equation. In the case where the environment is divergence-free, our result can be interpreted as computing the scaling limit of the first-order correction to the quenched Central L…

A limit lifting theorem for fibrations between bicategories
Patrick Nicodemus
https://arxiv.org/abs/2509.04639 https://arxiv.org/pdf/2509.04639

A limit lifting theorem for fibrations between bicategories
A standard result from the theory of Grothendieck fibrations states that if $p : E \to B$ is a fibration, then $E$ has limits of shape $\mathcal{J}$ if $B$ has limits of shape $\mathcal{J}$ the fibers of $\mathcal{E}$ have limits of shape $\mathcal{J}$, and the reindexing functors preserve these limits. Such a result is a basic tool when computing limits in a category known to be the total category of a fibration, for example, one that is defined using the Grothendieck construction. This paper …

And a related issues - lowered speed limits work when well implemented. #VisionZero #SafeStreets
https://…

Brent Toderian (@brenttoderian.bsky.social)
IMPORTANT STUDY: “On average, the implementation of 30 km/h speed limits in European cities demonstrated a 23%, 37% & 38% reduction in road crashes, fatalities & injuries respectively. Lower speed limits also yielded environmental benefits.” https://www.nrso.ntua.gr/review-of-city-wide-30-kmh-speed-limit-benefits-in-europe-may-2024/

And a related issues - lowered speed limits work when well implemented. #VisionZero #SafeStreets
https://…

Brent Toderian (@brenttoderian.bsky.social)
IMPORTANT STUDY: “On average, the implementation of 30 km/h speed limits in European cities demonstrated a 23%, 37% & 38% reduction in road crashes, fatalities & injuries respectively. Lower speed limits also yielded environmental benefits.” https://www.nrso.ntua.gr/review-of-city-wide-30-kmh-speed-limit-benefits-in-europe-may-2024/

FoundationalECGNet: A Lightweight Foundational Model for ECG-based Multitask Cardiac Analysis
Md. Sajeebul Islam Sk., Md Jobayer, Md Mehedi Hasan Shawon, Md. Golam Raibul Alam
https://arxiv.org/abs/2509.08961

FoundationalECGNet: A Lightweight Foundational Model for ECG-based Multitask Cardiac Analysis
Cardiovascular diseases (CVDs) remain a leading cause of mortality worldwide, underscoring the importance of accurate and scalable diagnostic systems. Electrocardiogram (ECG) analysis is central to detecting cardiac abnormalities, yet challenges such as noise, class imbalance, and dataset heterogeneity limit current methods. To address these issues, we propose FoundationalECGNet, a foundational framework for automated ECG classification. The model integrates a dual-stage denoising by Morlet and…

Verbalized Algorithms
Supriya Lall, Christian Farrell, Hari Pathanjaly, Marko Pavic, Sarvesh Chezhian, Masataro Asai
https://arxiv.org/abs/2509.08150 https://

Verbalized Algorithms
Instead of querying LLMs in a one-shot manner and hoping to get the right answer for a reasoning task, we propose a paradigm we call \emph{verbalized algorithms} (VAs), which leverage classical algorithms with established theoretical understanding. VAs decompose a task into simple elementary operations on natural language strings that they should be able to answer reliably, and limit the scope of LLMs to only those simple tasks. For example, for sorting a series of natural language strings, \em…

The simplest Kochen-Specker set
Ad\'an Cabello
https://arxiv.org/abs/2508.07335 https://arxiv.org/pdf/2508.07335

The simplest Kochen-Specker set
Kochen-Specker (KS) sets are fundamental in physics. Every time nature produces bipartite correlations attaining the nonsignaling limit, or two parties always win a nonlocal game impossible to always win classically, is because the parties are measuring a KS set. The simplest quantum system in which all these phenomena occur is a pair of three-level systems. However, the simplest KS sets in dimension three known are asymmetrical and require a large number of bases (the current minimum is 16, se…

The non-relativistic limit of scattering states for the Vlasov equation with short-range interaction potentials
Younghun Hong, Stephen Pankavich
https://arxiv.org/abs/2509.08072

The non-relativistic limit of scattering states for the Vlasov equation with short-range interaction potentials
We study the relativistic and non-relativistic Vlasov equation driven by short-range interaction potentials and identify the large time dynamics of solutions. In particular, we construct global-in-time solutions launched from small initial data and prove that they scatter along the forward free flow to well-behaved limits as $t \to \infty$. Moreover, we prove the existence of wave operators for such a regime and, upon constructing the aforementioned time asymptotic limits, use the wave operator…

Minor-excluded graphs and soficity
Oriol Sol\'e-Pi
https://arxiv.org/abs/2508.06731 https://arxiv.org/pdf/2508.06731

Minor-excluded graphs and soficity
A random rooted graph is said to be sofic if it is the Benjamini-Schramm limit of a sequence of finite graphs. Given any finite graph $H$, we prove that every one-ended, unimodular random rooted graph that does not have H as a minor must be sofic. The hypothesis regarding the number of ends can be dropped under the additional assumption that the graph is quasi-transitive.

Time evolution of averaged limit shapes of random multiple Young diagrams
Akihito Hora
https://arxiv.org/abs/2509.07393 https://arxiv.org/pdf/2509.07393

Time evolution of averaged limit shapes of random multiple Young diagrams
The branching rule for the tower of wreath products of a finite group by the symmetric groups induces a stochastic process on the set of multiple Young diagrams through random transitions of boxes of the diagrams between one another. We observe dynamical multiple averaged limit shapes resulting from appropriate scaling limits, either diffusive or non-diffusive. We describe time evolution of the macroscopic multiple averaged limit shapes in terms of Voiculescu's $R$-transforms and free Lévy mea…

Correlation Function/Wilson Loop Duality in Gauge Theory from EFT
Hao Chen, Pier Francesco Monni, Zhaoyan Pang, Gherardo Vita, Hua Xing Zhu
https://arxiv.org/abs/2510.07377 http…

Correlation Function/Wilson Loop Duality in Gauge Theory from EFT
In this Letter, we initiate a systematic study of the $n$-point correlation functions (CF) in gauge theories in the sequential light-cone (SLC) limit. Focusing on QCD, we formulate a factorization theorem for the CF of four vector currents in this limit using tools from soft-collinear effective field theory (SCET). This result unveils a duality between CF and Wilson loops in non-conformal field theories, according to which the singular structure of the CF is described by a null polygonal Wilson…

Double logarithmic contribution to Higgs pair production in the high-energy limit
Zhenghong Hu, Tao Liu
https://arxiv.org/abs/2509.06381 https://arxiv.org/…

Double logarithmic contribution to Higgs pair production in the high-energy limit
We study the leading logarithmic QCD corrections to Higgs pair production in the high-energy limit, which originate from soft quark exchange in the Feynman diagram and are thus suppressed by the quark mass. It is found that triangle Feynman diagrams can be analyzed in the same way as single Higgs production mediated by bottom quarks [45-47], while for diagrams of box type we cannot get an all-order result due to the many more double logarithmic structures they own. In this paper we calculate th…

Nonequilibrium steady state in Lindblad dynamics for infinite quantum spin systems
Kenji Shimomura, Nagisa Hara, Seiichiro Kusuoka
https://arxiv.org/abs/2508.07448 https://

Nonequilibrium steady state in Lindblad dynamics for infinite quantum spin systems
We consider Lindblad dynamics of quantum spin systems on infinite lattices and define a nonequilibrium steady state (NESS) and a time-averaged nonequilibrium steady state (TANESS) on the basis of $C^*$-algebraic formalism. Generically, the NESS on an infinite system does not equal the thermodynamic limit of NESSs on finite systems. We give a sufficient condition that they coincide with each other, in terms of both a condition number, which quantifies the normality of a Liouvillian, and some spe…

The role of communication delays in the optimal control of spatially invariant systems
Luca Ballotta, Juncal Arbelaiz, Vijay Gupta, Luca Schenato, Mihailo R. Jovanovi\'c
https://arxiv.org/abs/2509.09269

The role of communication delays in the optimal control of spatially invariant systems
We study optimal proportional feedback controllers for spatially invariant systems when the controller has access to delayed state measurements received from different spatial locations. We analyze how delays affect the spatial locality of the optimal feedback gain leveraging the problem decoupling in the spatial frequency domain. For the cases of expensive control and small delay, we provide exact expressions of the optimal controllers in the limit for infinite control weight and vanishing del…

Covariant Carrollian Electric and Magnetic Limits of General Relativity
Tanmay Patil (IIT Bombay), S. Shankaranarayanan (IIT Bombay)
https://arxiv.org/abs/2509.07601 https://

Covariant Carrollian Electric and Magnetic Limits of General Relativity
The Carrollian limit ($c \to 0$) of General Relativity provides the geometric language for describing null hypersurfaces, such as black hole event horizons and null infinity. Motivated by the well-established electric and magnetic limits of Galilean electromagnetism, we perform a systematic analysis of the low-velocity limit of linearized gravity to derive its Carrollian counterparts. Using a 1+3 covariant decomposition, we study the transformation properties of linear tensor perturbations (gra…

Weak solutions and incompressible limit of a quasi-incompressible Navier--Stokes/Cahn--Hilliard model for viscous two-phase flows
Mingwen Fei, Xiang Fei, Daozhi Han, Yadong Liu
https://arxiv.org/abs/2508.08090

Weak solutions and incompressible limit of a quasi-incompressible Navier--Stokes/Cahn--Hilliard model for viscous two-phase flows
We study a quasi-incompressible Navier--Stokes/Cahn--Hilliard coupled system which describes the motion of two macroscopically immiscible incompressible viscous fluids with partial mixing in a small interfacial region and long-range interactions. The case of unmatched densities with mass-averaged velocity is considered so that the velocity field is no longer divergence-free, and the pressure enters the equation of the chemical potential. We first prove the existence of global weak solutions to …

Acoustic source depth estimation method based on a single hydrophone in Arctic underwater
Jinbao Weng (Laboratory of Ocean acoustics and Remote Sensing, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian 361005, China, Fujian Provincial Key Laboratory of Marine Physical and Geological Processes, Xiamen, Fujian 361005, China), Yubo Qi (State key laboratory of acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China), Yanming Yang …

Acoustic source depth estimation method based on a single hydrophone in Arctic underwater
Based on the normal mode and ray theory, this article discusses the characteristics of surface sound source and reception at the surface layer, and explores depth estimation methods based on normal modes and rays, and proposes a depth estimation method based on the upper limit of modal frequency. Data verification is conducted to discuss the applicability and limitations of different methods. For the surface refracted normal mode waveguide, modes can be separated through warping transformation.…

Generalized Pseudo-Hopf Bifurcation: Limit Cycle Position and Period
Lucas Queiroz Arakaki, Douglas Novaes, Paulo Santana
https://arxiv.org/abs/2510.05269 https://

Generalized Pseudo-Hopf Bifurcation: Limit Cycle Position and Period
We investigate planar piecewise-smooth vector fields with a discontinuity line, focusing on the bifurcation of crossing limit cycles that arise when one of the vector fields is translated along the discontinuity set. We establish topological conditions under which such bifurcations occur and, under additional generic hypotheses, derive precise asymptotic expressions for both the position and the period of the resulting limit cycle in terms of the perturbation parameter. Our results extend the c…

Bill Belichick and UNC have banned Patriots scouts from practice, limit access to all NFL scouts, per report

https://www.cbssports.com/colleg…

Parity Violation in Galaxy Shapes: Primordial Non-Gaussianity
Toshiki Kurita, Drew Jamieson, Eiichiro Komatsu, Fabian Schmidt
https://arxiv.org/abs/2509.08787 https://

Parity Violation in Galaxy Shapes: Primordial Non-Gaussianity
We present a comprehensive study of galaxy intrinsic alignment (IA) as a probe of parity-violating primordial non-Gaussianity (PNG). Within the effective field theory (EFT) framework, we show that the parity-odd IA power spectrum is sensitive to the collapsed limit of the parity-odd primordial trispectrum. For a $U(1)$-gauge inflationary model, the IA power spectrum is proportional to the power spectrum of the curvature perturbation, $P_ζ(k) \propto k^{-3}$. However, the proportionality consta…

Practical robust Bayesian spin-squeezing-enhanced quantum sensing under noises
Jinye Wei, Jungeng Zhou, Yi Shen, Jiahao Huang, Chaohong Lee
https://arxiv.org/abs/2509.08316 http…

Practical robust Bayesian spin-squeezing-enhanced quantum sensing under noises
Spin-squeezed states constitute a valuable entanglement resource capable of surpassing the standard quantum limit (SQL). However, spin-squeezed states only enable sub-SQL uncertainty within a narrow parametric window near some specific points. Identifying optimal measurement protocols for spin-squeezed states remains an outstanding challenge. Here we present an adaptive Bayesian quantum estimation protocol that achieves optimal measurement precision with spin-squeezed states under noises. Our p…

YouTube now lets mobile users set a customizable daily limit to restrict how long they can scroll Shorts feeds; the limit notifications are dismissible (Jess Weatherbed/The Verge)
https://www.theverge.com/news/804113/youtube-shorts-time-limit-pause-feeds…

YouTube will help you quit watching Shorts
YouTube users on mobile can now set a customizable daily limit that restricts how long they can scroll Shorts feeds.

Unusual ferromagnetic band evolution and high Curie temperature in monolayer 1T-CrTe2 on bilayer graphene
Kyoungree Park, Ji-Eun Lee, Dongwook Kim, Yong Zhong, Camron Farhang, Hyobeom Lee, Hayoon Im, Woojin Choi, Seha Lee, Seungrok Mun, Kyoo Kim, Jun Woo Choi, Hyejin Ryu, Jing Xia, Heung-Sik Kim, Choongyu Hwang, Ji Hoon Shim, Zhi-Xun Shen, Sung-Kwan Mo, Jinwoong Hwang

Unusual ferromagnetic band evolution and high Curie temperature in monolayer 1T-CrTe2 on bilayer graphene
2D van der Waals ferromagnets hold immense promise for spintronic applications due to their controllability and versatility. Despite their significance, the realization and in-depth characterization of ferromagnetic materials in atomically thin single layers, close to the true 2D limit, has been scarce. Here, a successful synthesis of monolayer (ML) 1T-CrTe2 is reported on a bilayer graphene (BLG) substrate via molecular beam epitaxy. Using angle-resolved photoemission spectroscopy and magneto-…

Spectral localization of single-nanoparticle plasmons through photonic substrate engineering
Shihao Feng, Juan-Feng Zhu, Xinyi Fan, Jindong Ai, Wenjie Zhou, Guangxin Liu, Jing-Feng Liu, Renming Liu, Wei Li, Lijun Guo, Lin Wu
https://arxiv.org/abs/2509.07699

Spectral localization of single-nanoparticle plasmons through photonic substrate engineering
Surface plasmon resonances (SPRs) are crucial for confining light beyond the diffraction limit, yet heavy metal losses often limit their spectral localization. Here, we propose a practical strategy for enabling the spectral localization of single-nanoparticle SPRs through photonic substrate engineering, which creates distinct optical pathways (OPs) to tailor the electromagnetic environments around plasmonic nanoparticles. By analyzing the multiplication factor spectrum of the projected local de…

Moments of additive martingales of branching L\'evy processes and applications
Yan-Xia Ren, Renming Song, Rui Zhang
https://arxiv.org/abs/2509.09188 https://

Moments of additive martingales of branching Lévy processes and applications
Let $W_t(θ)$ be the Biggins martingale of a supercritical branching Lévy process with non-local branching mechanism, and denote by $W_\infty(θ)$ its limit. In this paper, we first study moment properties of $W_t(θ)$ and $W_\infty(θ)$, and the tail behavior of $W_\infty(θ)$. We then apply these results to establish central limit theorems for $W_t(θ)-W_\infty(θ)$.

Global-in-time convergence in infinity-ion-mass limit for bipolar Euler-Poisson equations
Zhongmin Qian, Liang Zhao, Shengguo Zhu
https://arxiv.org/abs/2508.07704 https://

Global-in-time convergence in infinity-ion-mass limit for bipolar Euler-Poisson equations
In this paper, the Cauchy problem for the multi-dimensional (M-D) bipolar Euler-Poisson equations with far field vacuum is considered. Based on physical observations and some elaborate analysis of this system's intrinsic symmetric hyperbolic-elliptic coupled structures, for a class of smooth initial data that are of small scaled density but possibly large mean velocity, we give one rigorous global-in-time convergence proof for regular solutions from M-D bipolar Euler-Poisson equations to M-D un…

Soft Unification of Exceptional EFTs in de Sitter space
Zong-Zhe Du
https://arxiv.org/abs/2509.08979 https://arxiv.org/pdf/2509.08979

Soft Unification of Exceptional EFTs in de Sitter space
We uncover a surprising universal soft behaviour (USB) of a de Sitter (dS) S-matrix for \textit{all} exceptional effective field theories (EFTs) in dS space, stemming from the recently proposed generalised energy conservation (GEC) condition. At leading order in the soft limit, the dS S-matrices for all exceptional EFTs exhibit no scaling with the soft momentum, i.e. $\lim_{k\rightarrow 0}\mathcal{A}(k)\sim\mathcal{O}(1)$, a feature we term USB. We specifically show that USB fixes the four-poin…

Symmetry-protected many-body Ramsey spectroscopy: precision scaling and robustness
Sijie Chen, Jiahao Huang, Min Zhuang, Chaohong Lee
https://arxiv.org/abs/2509.08291 https://…

Symmetry-protected many-body Ramsey spectroscopy: precision scaling and robustness
Quantum entanglement is a powerful quantum resource for enhancing measurement precision beyond classical limit. % Here we propose an entanglement-enhanced symmetry-protected destructive many-body Ramsey interferometry for precise parameter estimation. % Through matching the symmetry of input states and Hamiltonian, the spectral shift of Ramsey spectroscopy caused by interparticle interaction, noise, decoherence and experimental imperfection can be mitigated for both time-independent and time-de…

The Thermodynamic Limit of Extreme First-Passage Times
Talia Baravi, Eli Barkai
https://arxiv.org/abs/2509.06098 https://arxiv.org/pdf/2509.06098

The Thermodynamic Limit of Extreme First-Passage Times
The statistics of the slowest first-passage time among a large population of $N$ searchers is crucial for determining the completion time of many stochastic processes. Classical extreme-value theory predicts that for diffusing particles in a finite domain of size $L$, the slowest first passage time follows a Gumbel distribution, but a Fréchet distribution in an infinite domain. Here, we study the physically relevant thermodynamic limit where both $N$ and $L$ diverge while the density $ρ= N/L$…

Memory Effects and Entanglement Dynamics of Finite time Acceleration
Nitesh K. Dubey, Sanved Kolekar
https://arxiv.org/abs/2508.07830 https://arxiv.org/pdf…

Memory Effects and Entanglement Dynamics of Finite time Acceleration
We construct a smooth trajectory in Minkowski spacetime that is inertial in the asymptotic past and future but undergoes approximately uniform acceleration for a finite duration. In a suitable limit, this trajectory reduces to the standard Rindler trajectory, reproducing the expected Bogoliubov transformations and results consistent with the thermal time hypothesis. We analyze the behavior of an Unruh-DeWitt (UDW) detector following such a trajectory and explore the dependence of complete posit…

The limit of repetition thresholds of rich sequences
Lubom\'ira Dvo\v{r}\'akov\'a, Edita Pelantov\'a
https://arxiv.org/abs/2509.06104 https://

The limit of repetition thresholds of rich sequences
The repetition threshold of a class of sequences is the smallest number $r$ such that a sequence from the class contains no repetition with exponent $> r$. We focus on the class $\mathcal{C}_d$ of $d$-ary sequences rich in palindromes. In 2020, Currie, Mol, and Rampersad determined the repetition threshold for $\mathcal{C}_2$. In 2024, Currie, Mol and Peltomäki found the repetition threshold for $\mathcal{C}_3$ and conjectured that the repetition threshold for $\mathcal{C}_d$ tends to 2 with $…

Geometry of critical discrete structures: percolation on the hierarchical lattice
Sanchayan Sen
https://arxiv.org/abs/2509.09589 https://arxiv.org/pdf/2509…

Geometry of critical discrete structures: percolation on the hierarchical lattice
Consider balls $Λ_n$ of growing volumes in the $d$-dimensional hierarchical lattice, and place edges independently between each pair of vertices $x\neq y\inΛ_n$ with probability $1-\exp(-βJ(x, y) )$ where $J(x, y) \asymp \| x-y \|^{-α}$ for some $0<α<5d/6$. We identify the critical window for this model and establish the metric scaling limit within the critical window. More precisely, we show that the metric scaling limit of the maximal components is Brownian, and that this model…

Unfolding the geometric structure and multiple timescales of the urea-urease pH oscillator
Arthur V. Straube, Guillermo Olic\'on M\'endez, Stefanie Winkelmann, Felix H\"ofling, Maximilian Engel
https://arxiv.org/abs/2508.07275

Unfolding the geometric structure and multiple timescales of the urea-urease pH oscillator
We study a two-variable dynamical system modeling pH oscillations in the urea-urease reaction within giant lipid vesicles -- a problem that intrinsically contains multiple, well-separated timescales. Building on an existing, deterministic formulation via ordinary differential equations, we resolve different orders of magnitude within a small parameter and analyze the system's limit cycle behavior using geometric singular perturbation theory (GSPT). By introducing two different coordinate scalin…

Kallen-Lehmann representation for Spinor-Scalar Loops in de Sitter Space-time. Spectral equations
Boris L. Altshuler
https://arxiv.org/abs/2508.07467 https://

Kallen-Lehmann representation for Spinor-Scalar Loops in de Sitter Space-time. Spectral equations
Compact formulas (1), (28) presented in this paper permit to formulate the Kallen-Lehmann harmonic decompositions of the products of two spinor and of spinor and scalar harmonic functions in AdS and Wightman functions in dS spaces; the correct flat space limit of the corresponding Kallen-Lehmann densities is demonstrated. Also in Sec. 4 the relatively simple, suitable for calculations Kallen-Lehmann representations of the real parts of spinor and scalar one-loop self-energies in Yukawa model in…

Quantum Dynamics and Elementary Excitations in Superfluid He4 Films at Low Temperatures
Vladimir I. Kruglov, Houria Triki
https://arxiv.org/abs/2509.09137 https://

Quantum Dynamics and Elementary Excitations in Superfluid He4 Films at Low Temperatures
We have formulated a novel quantum nonlinear Schrodinger equation describing of superfluid He4 in films at low temperatures. It is shown that in classical limit the found nonlinear Schrodinger equation reduces to a system of equations which are equivalent to Boussinesq equations describing the propagation of long gravity waves in incompressible fluids. This nonlinear Schrodinger equation leads to phonon-roton dispersion relation for elementary excitations in superfluid He4 films at low …

Eikonal quasinormal modes of highly-spinning black holes in higher-curvature gravity: a window into extremality
Pablo A. Cano, Marina David, Guido van der Velde
https://arxiv.org/abs/2509.08664

Eikonal quasinormal modes of highly-spinning black holes in higher-curvature gravity: a window into extremality
We carry out the first computation of gravitational quasinormal modes of black holes with arbitrary rotation in a theory with higher-derivative corrections. Our analysis focuses on a recently identified quartic-curvature theory that preserves the isospectrality of quasinormal modes in the eikonal limit and that is connected to string theory. We find a master equation that governs large-momentum gravitational perturbations in this theory. By solving this equation with WKB methods, we provide com…

Scalable Network of Mach-Zehnder Interferometers with a Single Entangled Resource
Zhihui Yan, Yanni Feng, Luca Pezze, Zhaoqing Zeng, Jingxu Ma, Xiaoyu Zhou, Augusto Smerzi, Xiaojun Jia, Kunchi Peng
https://arxiv.org/abs/2509.08230

Scalable Network of Mach-Zehnder Interferometers with a Single Entangled Resource
Distributed quantum sensing exploits entanglement to enhance the estimation of multiple parameters across a network of spatially-separated sensors, achieving sensitivities beyond the classical limit. Potential applications cover a plethora of technologies, from precision navigation to biomedical imaging and environmental monitoring. However, practical implementations are challenged by the complex optimal distribution of entanglement throughout the sensing nodes, which affects scalability and ro…

Resolving BCFT bulk-cone singularities in braneworlds and top-down holography
Dongming He, Christoph F. Uhlemann
https://arxiv.org/abs/2509.08893 https://a…

Resolving BCFT bulk-cone singularities in braneworlds and top-down holography
Two-point functions in BCFTs exhibit characteristic singularities compared to standard CFTs due to reflected light cones. In holographic BCFTs, further singularities, which need not be related to reflected light cones within the BCFT, can arise when the insertion points are connected by bulk null geodesics. The resulting `bulk-cone singularities' are expected to be an artifact of the `t Hooft limit and should be resolved in string theory. In this work we demonstrate the resolution of bulk-cone …

Deformation of semi-circle law for the correlated time series and Phase transition
Masato Hisakado, Takuya Kaneko
https://arxiv.org/abs/2508.07192 https://…

Deformation of semi-circle law for the correlated time series and Phase transition
We study the eigenvalue of the Wigner random matrix, which is created from a time series with temporal correlation. We observe the deformation of the semi-circle law which is similar to the eigenvalue distribution of the Wigner-Lèvy matrix. The distribution has a longer tail and a higher peak than the semi-circle law. In the absence of correlation, the eigenvalue distribution of the Wigner random matrix is known as the semi-circle law in the large $N$ limit. When there is a temporal correlatio…

High-friction limit for bipolar Euler-Riesz systems
Nuno J. Alves, Jan Haskovec
https://arxiv.org/abs/2509.05742 https://arxiv.org/pdf/2509.05742

High-friction limit for bipolar Euler-Riesz systems
We consider a bipolar Euler-Riesz system and rigorously justify the high-friction limit of weak solutions towards a bipolar aggregation-diffusion system with Riesz interactions. The analysis is carried out via the relative entropy method in the regime where smooth solutions of the limiting equations exist. This extends previous results on the high-friction limit of bipolar Euler-Poisson systems to a more general class of interactions, and extends the one-species Euler-Riesz case to the bipolar …

Inflation and Dark Energy from Loop Quantum Kaluza-Klein Cosmology
Shengzhi Li, Yongge Ma, Faqiang Yuan, Xiangdong Zhang
https://arxiv.org/abs/2508.07962 https://

Inflation and Dark Energy from Loop Quantum Kaluza-Klein Cosmology
The five-dimensional loop quantum Kaluza-Klein cosmology is constructed based on the symmetric reduction of the connection formulation of the full theory. Through semiclassical analysis, the effective scalar constraint for the cosmological model coupled with a dust field is derived, incorporating the quantum fluctuations of geometry as a subleading order correction. It demonstrates that the quantum model has the correct classical limit. The explicit solutions to the equations of motion show tha…

Unambiguous discrimination of the change point for quantum channels
Kenji Nakahira
https://arxiv.org/abs/2508.06785 https://arxiv.org/pdf/2508.06785…

Unambiguous discrimination of the change point for quantum channels
Identifying the precise moment when a quantum channel undergoes a change is a fundamental problem in quantum information theory. We study how accurately one can determine the time at which a channel transitions to another. We investigate the quantum limit of the average success probability in unambiguous discrimination, in which errors are completely avoided by allowing inconclusive results with a certain probability. This problem can be viewed as a quantum process discrimination task, where th…

Tripartite Entanglement Signal from Multipartite Entanglement of Purification
Ning Bao, Keiichiro Furuya, Joydeep Naskar
https://arxiv.org/abs/2509.08209 https://

Tripartite Entanglement Signal from Multipartite Entanglement of Purification
We propose a signal $Δ^{(3)}_p$ for genuine tripartite entanglement in finite-dimensional quantum systems and $Δ^{(3)}_w$ for holographic systems. We prove that $Δ^{(3)}_p$ is non-negative for any tripartite entangled mixed states. Based on the conjecture, the equality between an entanglement wedge cross section $E_w$ and entanglement of purification $E_p$, i.e., $E_w = E_P$ in the semiclassical limit, we apply the tripartite entanglement measure to study the structures of tripartite entangl…

Expanding a 4-qubit Dicke State a to 5-qubit Dicke State with Limited Qubit Access
Bibhuti Thapa, Oberon Moran, Duc-Kha Vu, Fatih Ozaydin
https://arxiv.org/abs/2508.07977 https:…

Expanding a 4-qubit Dicke State a to 5-qubit Dicke State with Limited Qubit Access
In scenarios where full access to all qubits of a multipartite quantum system is available and global operations can be implemented, the preparation of arbitrary entangled states - including multipartite Dicke states - is theoretically straightforward. However, practical constraints often limit direct control over all qubits. In this work, we first present an efficient method for preparing a four-qubit Dicke state, and then demonstrate how a four-qubit Dicke state can be expanded to a five-qubi…

The limit shape of the Leaky Abelian Sandpile Model on isoradial graphs
Th\'eo Ballu
https://arxiv.org/abs/2509.06648 https://arxiv.org/pdf/2509.06648

The limit shape of the Leaky Abelian Sandpile Model on isoradial graphs
We study the limit shape of the boundary of the leaky sandpile model on isoradial graphs. These graphs are equipped with conductances and masses introduced by Boutillier, de Tilière and Raschel, which are defined with the help of the geometry of the graph and Jacobi elliptic functions. Building on the link between the shape of the boundary of the sandpile and the Green function of the graph, together with the asymptotics of the Green function obtained by the previously mentioned authors, we pr…

Boundary Actions and Loop Groups: A Geometric Picture of Gauge Symmetries at Null Infinity
Silvia Nagy, Javier Peraza, Giorgio Pizzolo
https://arxiv.org/abs/2509.08725 https://

Boundary Actions and Loop Groups: A Geometric Picture of Gauge Symmetries at Null Infinity
In previous work arXiv:2407.13556, we proposed an extended phase space structure at null infinity accommodating large gauge symmetries for sub$^n$-leading soft theorems in Yang-Mills, via dressing fields arising in the Stueckelberg procedure. Here, we give an explicit boundary action controlling the dynamics of these fields. This allows for a derivation from first principles of the associated charges, together with an explicit renormalization procedure when taking the limit to null and spatial …

Geometry-Controlled Freezing and Revival of Bell Nonlocality through Environmental Memory
Mohamed Hatifi
https://arxiv.org/abs/2508.07046 https://arxiv.org…

Geometry-Controlled Freezing and Revival of Bell Nonlocality through Environmental Memory
We show that the distance between two qubits coupled to a structured reservoir acts as a single geometric control that can store, revive, or suppress Bell nonlocality. In a mirror-terminated guide, quantum correlations lost to the bath return at discrete recurrence times, turning a product state into a Bell-violating one without any entangling drive (only local basis rotations/readout). In the continuum limit, we derive closed-form criteria for the emergence of nonlocality from backflow, and in…

Sharp power concavity of two relevant free boundary problems of reaction-diffusion type
Qingyou He
https://arxiv.org/abs/2509.08768 https://arxiv.org/pdf/2…

Sharp power concavity of two relevant free boundary problems of reaction-diffusion type
The porous medium type reaction-diffusion equation and the Hele-Shaw problem are two free boundary problems linked through the incompressible (Hele-Shaw) limit. We investigate and compare the sharp power concavities of the pressures on their respective supports for the two free boundary problems. For the pressure of the porous medium type reaction-diffusion equation, the $\frac{1}{2}$-concavity preserves all the time, while $α$-concavity for $α\in[0,\frac{1}{2})\cup(\frac{1}{2},1]$ does not p…

Long memory score-driven models as approximations for rough Ornstein-Uhlenbeck processes
Yinhao Wu, Ping He
https://arxiv.org/abs/2509.09105 https://arxiv.…

Long memory score-driven models as approximations for rough Ornstein-Uhlenbeck processes
This paper investigates the continuous-time limit of score-driven models with long memory. By extending score-driven models to incorporate infinite-lag structures with coefficients exhibiting heavy-tailed decay, we establish their weak convergence, under appropriate scaling, to fractional Ornstein-Uhlenbeck processes with Hurst parameter $H < 1/2$. When score-driven models are used to characterize the dynamics of volatility, they serve as discrete-time approximations for rough volatility. We pr…

Electroconvection in a Magnetic Field
Elie Abdo, Peter Constantin, Mihaela Ignatova, Quyuan Lin
https://arxiv.org/abs/2508.07439 https://arxiv.org/pdf/2508…

Electroconvection in a Magnetic Field
Electroconvection in a porous medium under a strong transversal magnetic field is described by an active scalar equation for the charge density. The equation has global weak solutions with $L^{\infty}$ data. We show that for strong enough magnetic fields, $L^{\infty}$-small solutions are smooth globally in time and they obey surface quasigeostrophic equations in the limit of infinite magnetic field strength.

Lipschitz regularity for $p$-harmonic interface transmission problems
Marius M\"uller
https://arxiv.org/abs/2509.08735 https://arxiv.org/pdf/2509.0873…

Lipschitz regularity for $p$-harmonic interface transmission problems
We prove optimal Lipschitz regularity for weak solutions of the measure-valued $p$-Poisson equation $-Δ_p u = Q \; \mathcal{H}^{n-1} \llcorner Γ$. Here $p \in (1,2)$, $Γ$ is a compact and connected $C^2$-hypersurface without boundary, and $Q$ is a positive $W^{2,\infty}$-density. This equation can be understood as a nonlinear interface transmission problem. Our main result extends previous studies of the linear case and provides further insights on a delicate limit case of (linear and nonlin…